有个心理学实验将小狗分为三组养大:第一组和第三组活在低电流空间,第二组环境正常。第一组小狗可找按钮截停电流,第三组小狗无法制止电流。小狗长大后,分别困在低电流矮栏之后,小狗起初都跳不过矮栏,碰到矮栏会遭电击。第一组和第二组小狗经过观察和不停试跳后,一一跳栏离开。 There is a psychological experiment will be divided into three groups to raise the dog: the first group and the third group living in low current space, the second group of normal environment. The first group of dogs can find the button to stop the current, the third group of dogs can not stop the current. Puppies grow up, respectively, trapped in the low current short bar, the puppies initially jump short bar, hit short bar will be electric shock. The first group and the second group of dogs after observation and non-stop test jump, one by one hurdle left.